Northern lights in North Bay tonight
Northern Ontario, Canada · 55° magnetic latitude · Kp 5 threshold
Kp 6 is at the threshold for North Bay. Aurora may be visible from a dark site if cloud cover permits.
7-day outlook for North Bay
Based on CME arrival predictions from NASA DONKI. Arrival times ±6 hours.
auroratonight.space
What Kp is needed here?
North Bay sits at a magnetic latitude of approximately 55°N. The Kp index - a global measure of geomagnetic activity on a scale from 0 (quiet) to 9 (extreme storm), updated every 3 hours - needs to reach Kp 5 before the auroral oval expands far enough south to be visible from here.
At Kp 5, visibility is possible from North Bay but skies need to be clear and dark. Cloud cover and light pollution remain the main obstacles even when Kp is high enough.
Best dark sky sites near North Bay
Light pollution is the biggest obstacle after cloud cover. These sites give you the best dark northern horizon within reach.
Lake Nipissing North Shore
Get directions ↗The north shore of Lake Nipissing gives a clear northern horizon across the open water, reducing light pollution to the south and allowing a clean view of lower-altitude aurora arcs. Drive north of the city limits and find a lakeside pullout with minimal road lighting. On a Kp 5 night, a low arc above the tree line is the typical display. The lake reflection adds a foreground when aurora is bright enough to mirror on still water.
Marten River Provincial Park
Get directions ↗A small provincial park on the highway north toward Temiskaming. The campground has open clearings facing north with minimal ambient light from surrounding settlements. At 50 km from a city of 50,000, sky brightness is substantially lower than the lakeshore. On Kp 5 nights, aurora structure - bands and rays rather than just a diffuse glow - becomes visible from the campground clearings. The northern Ontario boreal forest provides a classic Canadian aurora silhouette.
Algonquin Provincial Park - Costello Creek
Get directions ↗Algonquin is Ontario's pre-eminent dark sky park and has been used for aurora photography for decades. Costello Creek on Highway 60 provides a wide clearing with a clear northern horizon. The park has almost no internal lighting. The drive south is a commitment on a marginal forecast night, but for Kp 5+ storms, Algonquin gives significantly darker skies than anywhere close to North Bay. The Wolf Howl Pond area and Mew Lake campground are alternative dark sky positions within the park.
Best time to see the northern lights in North Bay
At 55°N magnetic latitude, North Bay sits at the lower end of regular aurora territory. Only the deep mid-winter months of November through January offer nights dark enough for aurora to be visible, and only then when a significant geomagnetic storm pushes the auroral oval this far south.
Activity peaks around the September and March equinoxes, when Earth's magnetic field geometry is most favourable for coupling with the solar wind. Events during these two windows tend to produce the strongest displays of the year for observers at North Bay's latitude.
Outside November through January, twilight is too bright for aurora viewing even during significant storms. The season is short, but the equinox months on either side of winter can extend it slightly when storm timing aligns.
Up to 8 locations
How often does the aurora appear in North Bay?
Average nights per month the Kp reached North Bay's threshold of 5+, from 15 years of geomagnetic data (2010–2024).
Counts the Kp 5+ threshold only - cloud cover and local darkness are not included.
Kp data: GFZ German Research Centre for Geosciences, CC BY 4.0
Plan your trip to North Bay
Best window
The August to October window averages 4 aurora nights - the strongest consecutive stretch of the year.
How long to stay
Aurora at this latitude requires patience - allow as many nights as possible during March.
Related pages
Northern Lights Canada
Canada-wide aurora forecast hub.
Read →Northern Lights Sudbury Tonight
Sudbury - Killarney Provincial Park dark sky, same Kp threshold.
Read →Northern Lights Ontario
Ontario-wide aurora hub - Algonquin, Killarney, Lake Superior.
Read →Northern Lights Thunder Bay Tonight
Thunder Bay - Lake Superior north shore dark sky.
Read →What Is the Kp Index?
How Kp determines aurora visibility at 55° geomagnetic latitude.
Read →Aurora photographs from North Bay
Real photos sourced from Wikimedia Commons.
Planning your aurora trip
In-depth guides to help you plan a trip to see the northern lights.
Travel GuideCanadaNorthern Lights Canada - Complete Travel Guide
Yukon, Northwest Territories, Manitoba - where to go and when the aurora is strongest.
Travel GuideAll destinationsHow to Plan a Northern Lights Trip
Destination, timing, accommodation, app setup, and how to read a space weather forecast.
PlanningAll destinationsBest Time to See the Northern Lights
Month-by-month breakdown of aurora probability, darkness windows, and weather patterns.










